Jinkyu ROH

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Seoul, KR

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Patents Grantslast 30 patents

Information Patent Grant
Silicon layer etchant composition and method of forming pattern by...
- Patent number 11,168,253
- Issue date Nov 9, 2021
- Samsung Electronics Co., Ltd.
- Changsu Jeon
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...

Patents Applicationslast 30 patents

Information Patent Application
ETCHANT COMPOSITION FOR ETCHING SILICON AND SILICON GERMANIUM, AND...
- Publication number 20240263072
- Publication date Aug 8, 2024
- Samsung Electronics Co., Ltd.
- Heesuk WOO
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
SILICON LAYER ETCHANT COMPOSITION AND METHOD OF FORMING PATTERN BY...
- Publication number 20200216757
- Publication date Jul 9, 2020
- DONGWOO FINE-CHEM CO., LTD
- Changsu JEON
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...